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Robles O, Serna-Saldívar SO, Gutiérrez-Uribe JA, Romo D.Robles O, et al.Org Lett. 2012 Mar 16;14(6):1394-7. doi: 10.1021/ol300105q. Epub 2012 Feb 24.Org Lett. 2012.PMID: 22360738Free PMC article.